Lunyu V. 14. (106)

The ardour of Tsze-lû in practising the master's instructions.
When Tsze-lû heard anything, if he had not yet succeeded in carrying it into practice, he was only afraid lest he should hear something else.

Legge V.13.

Before he could put into practice something he had heard, the only thing Tzu-lu feared was that he should be told something further.